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Date:      Fri, 05 May 2006 12:38:12 +0800
From:      Erich Dollansky <oceanare@pacific.net.sg>
To:        Eric Anderson <anderson@centtech.com>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: Core Duo - only one cpu being used
Message-ID:  <445AD6B4.7050407@pacific.net.sg>
In-Reply-To: <445AD50B.2060107@centtech.com>
References:  <445AB56F.8090907@centtech.com> <445AC174.5050102@pacific.net.sg> <445AC46F.30702@centtech.com> <445AD048.80305@pacific.net.sg> <445AD1AC.1070902@centtech.com> <445AD300.1020808@pacific.net.sg> <445AD50B.2060107@centtech.com>

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Hi,

Eric Anderson wrote:
> Erich Dollansky wrote:
>> Hi,
>>
>> Eric Anderson wrote:
>>>
>>>   PID USERNAME    THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU 
>>> COMMAND
>>>    11 root          1 171   52     0K     8K CPU1   0   0:00 99.02% 
>>> idle: cpu1
>>>  2653 root          1 128    0 18564K 17560K RUN    0   0:01 34.00% 
>>> cc1plus
>>
>> could it be that it is just a problem with top itself?
>>
>> It cannot be that CPU1 uses 99% for the idle process and 34% for the 
>> compiler.
>>
>> Play with the other sort options. You might find the the idle process 
>> for CPU0.
> 
> Is this what you want:
> 
> $ ps -auxw | grep idle
> root        11 99.0  0.0     0     8  ??  RL     7:45PM   0:00.00 [idle: cpu1]
> root        12  0.0  0.0     0     8  ??  RL     7:45PM  51:04.57 [idle: cpu0]
> 
something is really wrong here. CPU1 gets 99% of the time but uses then 
only 0 seconds while CPU0 gets 0% of the time but uses 51 hours?

This is, what I get:

root     11 98.2  0.0     0     8  ??  RL   21Apr06 19013:02.26 [idle: cpu1]
root     12 94.9  0.0     0     8  ??  RL   21Apr06 18456:39.99 [idle: cpu0]

This is a dual-Athlon system running 6.1 RC1.

Erich



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